Portion of a mount



FIG. 1 is a perspective view of my ornamental design of a portion of a mount;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is a top, plan view thereof; and,

FIG. 6 is a bottom, plan view thereof. 

The ornamental design of a portion of a mount, as shown and described. 